Originally Kattathurai was the sub-station of Pilankalai Parish Church.  From 1981 onwards the sisters of Azhakiyamandapam Convent used to conduct house visits at Kattathurai and neighbouring villages.  Many uncivilised people changed their mode of life and behaviour as a result of the house visits.  Rev. Fr. James Joseph C.M.I. the then vicar of Pilankalai parish requested Rev. Mother Mary Zacharias the then Provincial Superior of Deva Matha Province to start a convent at the Mission station of Kattathurai.  The Provincial superior with the consent of her council purchased a property at Kattathurai with a small house in it.  The house was renovated and repaired and a convent namely St. Antony's F.C. Convent was started on 7th April 1984.  His Grace Mar Antony Padiyara blessed the house.   Rev. Sr. Marianna was the first superior.  Rev. Sr. Paula, Sr. Elsy Jose and Sr. Tessina were the first members.  The sistes spent their time and energy to promote the all round development of the illiterate and uncivilised people of the locality.  The sisters regularly pay visit to the houses of people irrespective of caste or religion.  Ward meetings and Uraviam are conducted every sunday.  The sisters go to the houses of Catholic families and pray Rosary with them on every Thursday at 7 p.m.  They serve at the parish of Kattathurai and Paraikode.

In response to the request of the parishioners and local people one TamilMedium and another English Medium nursery classes were started on 6th June 1984 by the sisters of Kattathurai Convent.  The English medium Nursery has now grown into a fully developed Matriculation School namely St. Michael's Matriculation School with 905 students and 52 members in the staff.  In order to empower the women of the villages around Kattathurai the sisters started a stabiliser Assembling unit namely Mahima Electronics.  A building was constructed in the property belonging to the convent and His Grace Mar George Alencherry the then Bishop of Thuckalay blessed and inaugurated the institution.  Now 30 girls find means to earn their living by their work at this centre.